# Relationship history for MSHA mine 5002038

Current hierarchy: **Tracy Dale  Covey → Covey Construction LLC → Oilwell Road Pit**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Covey Construction LLC → Oilwell Road Pit; 2015-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tracy Dale  Covey → Oilwell Road Pit; 2015-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tracy Dale  Covey → Covey Construction LLC; 2015-09-01 to current/open; source msha-controller-operator-history